Serverless Framework Dynamo DB Table Resource Definition with Sort Key

问题

I have some code in my serverless.yml like this currently.

resources:
  Resources:
    uploadBucket:
      Type: AWS::S3::Bucket
      Properties:
        BucketName: ${self:service}-${self:custom.stage}-uploads
    visitsTable:
      Type: AWS::DynamoDB::Table
      Properties:
        TableName: ${self:custom.visitsTable}
        AttributeDefinitions:
          - AttributeName: userId
            AttributeType: S
          - AttributeName: visitId
            AttributeType: S
          - AttributeName: comments
            AttributeType: S
          - AttributeName: attachments
            AttributeType: S
          - AttributeName: ph
            AttributeType: N
          - AttributeName: ch
            AttributeType: N
        KeySchema:
          - AttributeName: userId
            KeyType: HASH
          - AttributeName: visitId
            KeyType: HASH
        ProvisionedThroughput:
            ReadCapacityUnits: 5
            WriteCapacityUnits: 5

My goal is to create a table with primary key userId, sort key visitId and have fields for comments, attachments, ph & ch. When I try to sls deploy I get the following error.

Serverless Error ---------------------------------------

An error occurred: visitsTable - Property AttributeDefinitions is inconsistent with the KeySchema of the table and the secondary indexes.

What am I doing wrong here?

Edit: Another attempt I tried

resources:
  Resources:
    uploadBucket:
      Type: AWS::S3::Bucket
      Properties:
        BucketName: ${self:service}-${self:custom.stage}-uploads
    visitsTable:
      Type: AWS::DynamoDB::Table
      Properties:
        TableName: ${self:custom.visitsTable}
        AttributeDefinitions:
          - AttributeName: userId
            AttributeType: S
          - AttributeName: visitId
            AttributeType: S
        KeySchema:
          - AttributeName: userId
            KeyType: HASH
          - AttributeName: visitId
            KeyType: RANGE
        ProvisionedThroughput:
            ReadCapacityUnits: 5
            WriteCapacityUnits: 5

回答1:

AWS DynamoDb is a NO-SQL type database and no need to define all the keys during the Table creation. Also from the AWS documentation it's clear that in Attribute Definition you have to specify the Key schema and indexes.

An array of attributes that describe the key schema for the table and indexes.

Please edit your code as below

resources:
  Resources:
    uploadBucket:
      Type: AWS::S3::Bucket
      Properties:
        BucketName: ${self:service}-${self:custom.stage}-uploads
    visitsTable:
      Type: AWS::DynamoDB::Table
      Properties:
        TableName: ${self:custom.visitsTable}
        AttributeDefinitions:
          - AttributeName: userId
            AttributeType: S
          - AttributeName: visitId
            AttributeType: S
        KeySchema:
          - AttributeName: userId
            KeyType: HASH
          - AttributeName: visitId
            KeyType: RANGE
        ProvisionedThroughput:
            ReadCapacityUnits: 5
            WriteCapacityUnits: 5

For More CreateTable

来源：https://stackoverflow.com/questions/47385177/serverless-framework-dynamo-db-table-resource-definition-with-sort-key

标签

amazon-web-services

amazon-dynamodb

serverless-framework